AV-MUX
Contents
1. AV MUX Digital Audio De embedder Rev 9 5 D pe E e 3 a DT D O cr cn o A E o o 3 AV MUX Rev 9 Network Electronics ASA Thorgya P O Box 1020 Sandefjord Norway Phone 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com www network electronics com Service Phone 47 90 60 99 99 Revision history Current revision of this document is the uppermost in the table below Revision Replaces Date Change description 2007 10 23 New front page and removed old logo 2007 10 05 Added Materials Declaration and EFUP 06 02 06 Updated CWDM laser options 16 06 05 Added CWDM information 15 11 02 Block diagram Improved configuration descriptions 19 06 02 DIP switch and Gyda figures C2 backplane N A On alN oo 14 12 01 Change default Disembedding now removes audio 29 11 01 DIP switch descriptions 15 10 01 Power limitations de embed not disembed 25 09 01 Cascade Gyda command Add drop option 11 09 01 Re corrected audio connections Gyda interface 26 07 01 Corrected the audio connections e js ol9Olm More limitations rigaololm Nm w KR Oo NDIN OO o Preliminary version Pre production run AV MUX Rev 9 Contents REVISIONS MISKODY jcxntacnava RI M QUE Y EUER DOR RD PAR Fou d MERDA aise 2 ToPrOGUGUO2. S28 3 r AES3 Error AES 3 receiver error 4 Open Collector v deest Hi AES4 Error AES 4 receiver error 5 Open Collector Ground 0 V pin 8 OV Figure 8 GPI output Electrical Maximums for GPI outputs Max current 100mA Max voltage 50V 18 AV MUX Rev 9 6 2 Front panel Status monitoring The status of the module can be easily monitored visually by the LED s at the front of the module The LED s are visible through the front panel as shown in the figure below Power SDI Laser AES 1 amp 2 AES 3 amp 4 Figure 9 Front panel indicators for the AV MUX text not printed on the front panel The AV MUX has 4 LED s The colours of each of the LED s have different meanings as shown in the table below Diode V State Red LED Orange LED Green LED No light Power PTC fuse has been N A Module power is Module has no triggered remove OK power the module SDI Laser Video signal Laser failure Video input signal absent Present AES 1 amp 2 No AES signals One AES signal Both AES signals present present present AES 3 amp 4 No AES signals One AES signal Both AES signals present present present If all of the lower three LED are orange then the card is not in operation Check that the two lower DIP switches are in the OFF position If the lower three LEDs are still orange after power up the card should be replaced Contact Network Support 19 A
3. 4 1 1 Override The card is normally configured with switches on the front of the card and additional options may be controlled with the GYDA monitoring control card The microcontroller on the AV MUX card reads the DIP switches If the card configuration is changed with GYDA the new configuration is stored on the card The OVERRIDE switch must be in the off position if these changes are not be lost 4 1 2 A Embed This switch controls the audio direction in embedding processor A to or from the video Embedding processor A embeds audio when the switch is on and de embeds audio when the switch is off 4 1 3A G3 This switch sets the audio group number for embedding processor A Embedding processor A uses group 3 when the switch is on but uses group 1 if the switch is off NOTE When the first processor A is configured to embed audio on group one all existing ancillary data will be removed The other embedding configurations will add new audio groups to the video signal 4 1 4 B Embed This switch controls the audio direction in embedding processor B to or from the video Embedding processor B embeds audio when the switch is on and de embeds audio when the switch is off 10 AV MUX Rev 9 4 1 5 B G4 This switch sets the audio group number for embedding processor B Embedding processor B uses group 4 when the switch is on but uses group 2 if the switch is off 4 1 6 Unmarked or A amp B Gn This DIP switch may be used to a
4. together The AES audio outputs are on when the corresponding inputs are present When the corresponding processor is used as an embedder the sample rate converted input signal is present on the outputs AV MUX C1 xxx is available in the following versions all with DFB lasers 1 2 Product versions Part No Wavelength Part No Wavelength AV MUX C1270 1270 6nm OdBm AV MUX C1470 1470 6nm OdBm AV MUX C1290 1290 6nm OdBm AV MUX C1 490 1490 6nm OdBm AV MUX C1310 1310 6nm OdBm AV MUX C1510 1510 6nm OdBm AV MUX C1 330 1330 6nm OdBm AV MUX C1530 1530 6nm OdBm AV MUX C1350 1350 6nm OdBm AV MUX C1550 1550 6nm OdBm AV MUX C1370 1370 6nm OdBm AV MUX C1570 1570 6nm OdBm AV MUX C1390 1390 6nm OdBm AV MUX C1590 1590 6nm OdBm AV MUX C1410 1410 6nm OdBm AV MUX C1610 1610 6nm OdBm AV MUX 2 Specifications 2 1 General Power Control Monitoring EDH processing Embedding level SMPTE S272M 2 2 Video input Video data rate Video frame rate Equalisation Impedance Return loss Signal level Connector 2 3 Audio inputs Number of AES inputs Audio data rate Impedance C1 Connector C1 Impedance C2 Connector C2 Rev 9 5V DC 1A DIP switches or Control system module Front panel LED s GPI and control system module Full Received flags are updated new CRCs are
5. years Recycling information Network Electronics provides assistance to customers and recyclers through our web site http www network electronics com Please contact Network Electronics Customer Support for assistance with recycling if this site does not show the information you require Where it is not possible to return the product to Network Electronics or its agents for recycling the following general information may be of assistance Before attempting disassembly ensure the product is completely disconnected from power and signal connections All major parts are marked or labelled to show their material content Depending on the date of manufacture this product may contain lead in solder Some circuit boards may contain battery backed memory devices 25
6. 13 AV MUX Rev 9 Switch Laser on or off Switch SRC 1 amp 2 on or off Switch SRC 3 amp 4 on or off Remove audio group after de embedding or not The control buttons only appear on the page when they are relevant 14 AV MUX Rev 9 5 Connector module 5 1 AV MUX C1 SDI output o o 8 RES INO Figure 5 Connector module AV MUX C1 for AV MUX 5 2 Mounting the connector module The details of how the connector module is mounted is found in the user manual for the sub rack frame FR 2RU 10 2 This manual is also available from our web site http www network electronics com 15 AV MUX Rev 9 5 3 AV MUX C2 CE SDI input SDI output O O TWaiwork Made in Norway Figure 6 Connector module AV MUX C2 for AV MUX 5 4 Audio connections The C1 connector card has a D sub 25 pin connector for all eight audio signals The pin configuration is similar to the TASCAM DA 88 connector except that both the input and output signals are on the same connector The configuration is shown in the figure below AES 1 and 2 come from de embedder A AES 3 and 4 come from de embedder B The C2 connector card has BNC connections for AES 3ID 75 unbalanced signals The backplane is designed for four
7. 1490 1510 1530 1550 1570 1590 or 1610 6nm according to ITU T G 694 2 0 dBm 4 SC UPC SDI digital serial component video RJ45 Open Collector transistor Valid video output Audio errors 1 4 50 V 400 mA if only one output driven 100 mA all outputs driven AV MUX Rev 9 3 Limitations 3 1 Power The AV MUX cards consume about 1A of 5V power This means that they need some breathing space in order to keep cool The cards should always have free slots on both sides and must not be placed in slot position 1 without forced cooling This waste of space also prevents the overloading of the power supply 3 2 Embedding The embedder processors only work in one mode at a time so that they do not detect the presence of incorrectly embedded audio when embedding The embedding processors will not detect existing audio groups with the same number in the incoming video This may result in audio becoming irretrievable or corrupt The AES Channel status and user bits are only transferred if the audio is synchronous to video This means that asynchronous audio with for example pre emphasis will lose that information 3 3 De embedding The de embedders will only work well with audio data that has been embedded at 48 kHz synchronous to the video signal They will work with equipment conforming to SMPTE S272M A or C The AES Channel status is regenerated in the card and no bits are carried from the received embedded a
8. UR ER Cyn US 18 6 2 Front panel Status Monitoring ar ke Lote e ro ix YR YR YA GN 19 7 Laser safety precautions uio O YY denen del d y 20 AV MUX Rev 9 General environmental requirements for flashlink equipment 21 Certificate of Conformity occa oh DNA 22 Product Warranty scar E rk ah ERE RUNE MPO ke ERR EUR Ea de EE V vas 23 Materials declaration and recycling information 24 Materials declaration eric tutos sued dn DA sae uss Y ovd RENAL DeL du de 24 Environmentally friendly use period eeeeeeeesses 24 Recycling Informatik ovauede e RR NG qa CU qu FSA FO ua 25 AV MUX Rev 9 1 Product overview The AV MUX card is an eight audio channel digital audio embedder and de embedder card for serial digital video It is one of the Flashlink series of modules providing a compact and cost effective solution for the transport of digital video and audio over single mode optical fibre The card has a serial digital video input and a serial digital video output There is an optional optical output with a choice of lasers with 7 5 dBm and 0 dBm output powers and wavelengths of 1310 nm and 1550 nm This corresponds to the flashlink range of SDI EO electrical to optical converter cards AV MUX C1xxx also supports CWDM wavelengths according to ITU T G 694 from 1270 6nm up to 1610 6nm The AV MUX card has four AES inputs and four AES outputs The card may be used both as an embedde
9. V MUX Rev 9 7 Laser safety precautions Guidelines to limit hazards from laser exposure All the available EO units in the flashlink range include a laser Therefore this note on laser safety should be read thoroughly The lasers emit light at 1310 nm or 1550 nm This means that the human eye cannot see the beam and the blink reflex cannot protect the eye The human eye can see light between 400 nm to 700 nm A laser beam can be harmful to the human eye depending on laser power and exposure time therefore Note BE CAREFUL WHEN CONNECTING DISCONNECTING FIBER PIGTAILS ENDS NEVER LOOK DIRECTLY INTO THE PIGTAIL OF THE LASER FIBER NEVER USE MICROSCOPES MAGNIFYING GLASSES OR EYE LOUPES TO LOOK INTO A FIBER END USE LASER SAFETY GOGGLES BLOCKING LIGHT AT 1310 nm AND AT 1550 nm Instruments exist to verify light output power Power meters IR cards etc Flashlink features All the laser module cards in the flashlink product range are Class 1 laser products according to IEC 825 1 1993 and class I according to 21 CFR 1040 10 when used in normal operation More details can be found in the user manual for the FR 2RU 10 2 frame Maximum output power 5 mW Operating wavelengths gt 1270 nm R PRODUCT REF FDA CFR Ch 1 4 1 97 Ed 1040 10 Max power is for safety analysis only and does not represent device performance 20 AV MUX Rev 9 General environmental requirements for flashlink e
10. VEPVIGW a i NA pgs 5 Te Signal ilawn un en ud RR nd de Y Y AR CD 6 1 2 Product Versi ns sr Liw o YRR FAD ERROR RERO EG FD E NAD 6 2 Specifications i ad REG Y AUR 7 PES C Ee DE Y YR T NE 7 2 2 M ideo Input quito FORO OR DIR Ri E Y YF IER ONU REEF FAS 7 2 3 Audio TIU US deb teres eode oe Wd y Fd codd tug a pete od GO 7 PA DIU eU Pe UU NU NN 7 2 5 AudiooutpulS cd ver eas oi ado Forno uper AY Vlr SN Beg dde 8 2 5 Optical Output coi rne Y etl OT e Y E EKA SVa ERES EFL CE RET EE Fd 8 2A Porro E 8 S Lirmitauolis d eoe rte docu apis i t ade arise a dud rd EU de dees 9 POW Peace ies sere GY FD bae 9 a Embedding MED oo DEA GN E sees eile ee eee 9 2 2 De empbeddinu senio vct WY Y Dd SN 9 4 Configurations Y YY YG FA NEA FA 10 A T DIP SWHCNES Qo Gn A asa eee CF CO 10 4 1 1 Override 10 4 1 2 A Embed 10 4 1 3 A G3 10 4 1 4 B Embed 10 4 1 5 B G4 11 4 1 6 Unmarked or A amp B Gn 11 4 1 7 Prog M 11 4 1 8 Prog S 11 4 2 Embedded audio LEMONY alu YF AY Dd Gf lec tie db 12 4 3 Sample rate Converter esos e uss Pe RISE Ox i tota FU GYR ba 12 4 4 Monitoring the status with GYDA SC cesses eene 12 5 Connector Mod le srera oro Ua i pe dcdit de 15 Dil AAU Sex ER 15 5 2 Mounting the connector module sesseeeeeeereeeeneeen nn 15 Bid AV MUKA arm A O Na yD YF YR dw Md Gn 16 5 4 Audio connectiOnS a y e Vn A e YN Ny 16 odviodule status use IU M Mte YN ea 18 6 1 GPI Module status Outputs ee nm EE EPUM SES UTE De eda EEUU FO
11. calculated C Synchronous audio at 48 kHz and extended data packets 24 bit 270 Mbps or 540 Mbps 50 Hz or 60 Hz Automatic up to 35dB 75 ohm gt 15dB 9270MHz Nom 800mV BNC 4 16 kHz to 144 kHz converted to 48 kHz if necessary 110 ohm transformer balanced 25 pin D sub 4 Inputs 4 outputs 75 ohm unbalanced 4 x BNC Embedded audio word length 24 bits Embedded audio channel status As received when synchronous Otherwise fixed 2 4 SDI output Number of SDI outputs Rise fall time Impedance Return loss Signal level Connector 1 Typ 650ps 75 ohm gt 15dB 9270MHz Nom 800mV BNC AV MUX 2 5 Audio outputs Number of AES outputs Audio data rate Impedance C1 Connector C1 Impedance C2 Connector C2 2 6 Optical output Transmission circuit fiber Light source Optical wavelength ver 13T Optical power Optical power option Optical wavelength ver 15T Optical power Optical wavelength for CWDM Optical power for CWDM modules Max reflected power Connector 2 7 GPI output Connector Signal type Positive signal Alarms Maximum voltage Maximum current Rev 9 4 48 kHz 110 ohm transformer balanced 25 pin D sub 4 Inputs 4 outputs 75 ohm unbalanced 4 x BNC Single Mode F P DFB laser 1310nm 40nm 7 5 dBm 0 dBm 1550nm 40nm 0 dBm 1270 1290 1310 1330 1350 1370 1390 or 1410 1470
12. ill be switched into both inputs This causes an short interruption to the first signal This is the only situation where existing audio is disturbed by the other input The SRCs remain in use even if the asynchronous input is disconnected SRCs are removed when both of the AES inputs are disconnected The SRCs can also be removed from the Gyda user interface Switching of signals when SRCs are in use will not cause any interruption of the other signal 4 4 Monitoring the status with GYDA SC The GYDA SC controller card receives information about the configuration and the operating status of the card The displayed information includes Power voltage Video signal margin Video format EDH flags and error counter Embedder processor configuration Embedder processing errors Audio I O PLL status and if SRCs are in use 12 AV MUX Rev 9 A ver tU AD DA gt TEE GYDA AV MUX 1310nm 7 5dBm PWL Laser on Vec gt 4 98 Volt SDI signal level 99 Error Detection and Handling Protected Data Errors Pull Field VAL EDH EDA DH IDA WENN AcwePitwe AT EDHI EDAH DHEN DAN MEN Ancillary Data EDH EDA DH DA BEE Alarms NO ALARMS Figure 3 AV MUX information page in GYDA SC a ver tU AD DA gt GYDA AV MUX 1310nm 7 5dBm Laser 9 ON COFF Set SRC 172 ON C OFF Set Figure 4 AV MUX configuration page in GYDA SC Gyda can also control a few parameters and these are
13. ill not tolerate two embedded audio groups Some of these converters will tolerate one 20 bit audio group but no more The intolerance is in the actual D A converter chip The embedded audio group may remain in the SDI after de embedding if necessary This configuration may only be set with a command from the GYDA controller but the OVERRIDE DIP switch must be in the off position to keep the configuration 4 3 Sample rate converters The sample rate converters SRCs on each of the AES inputs are only used when the audio is found to be asynchronous with the incoming video signal This is intended as a fail safe mechanism that will not be in use in most broadcast installations where the audio is isosynchronous with the video This strategy has a couple of trade offs If the audio is 48 kHz but not locked to the video it may take many seconds before the SRCs are switched on This is because the AV MUX card waits until three samples have been lost or skipped before switching The other caveat problem is connected to the fact that the embedding processor will only accept the same sort of audio on it s inputs The SRCs must be switched into both of the AES signals going to the embedding processor In certain circumstances the card has to make a brutal decision If an isosynchronous signal is presented to one of the inputs to the embedding processor the SRCs will not be used If a second signal is then applied to the other input of the pair the SRCs w
14. ls declaration For product sold into China after 1st March 2007 we comply with the Administrative Measure on the Control of Pollution by Electronic Information Products In the first stage of this legislation content of six hazardous materials has to be declared The table below shows the required information Toxic or hazardous substances and elements REW at R m ASME SRR SRAM Part Name Lead Mercury Cadmium Hexavalent Polybrominated Polybrominated Pb Hg Cd Chromium biphenyls diphenyl ethers Cr VD PBB PBDE AV MUX X Oo O O O O O Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ T11363 2006 X Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ T11363 2006 Environmentally friendly use period The manual must include a statement of the environmentally friendly use period This is defined as the period of normal use before any hazardous material is released to the environment The guidance on how the EFUP is to be calculated is not finalised at the time of writing See http www aeanet org GovernmentAffairs gfLeOpAaZXaMxgGJSFbEidSdPNtpT pdf for an unofficial translation of the draft guidance For our own products Network Electronics has chosen to use the 50 year figure rec
15. ommended in this draft regulation Network Electronics suggests the following statement on An Environmentally Friendly Use Period EFUP setting out normal use EFUP is the time the product can be used in normal service life without leaking the hazardous materials We expect the normal use environment to be in an eguipment room at controlled temperature range 0 C 40 C with moderate humidity lt 90 non condensing and clean air not subject to vibration or shock Further a statement on any hazardous material content for instance for a product that uses some tin lead solders Where a product contains potentially hazardous materials this is indicated on the product by the appropriate symbol containing the EFUP The hazardous material content is limited to lead Pb in some solders This is extremely stable in normal use and the EFUP is taken as 50 years by comparison with the EFUP given for Digital Exchange Switching Platform in eguipment in Appendix A of General Rule of Environment Friendly Use Period of Electronic Information Products This is indicated by the product marking 5 24 AV MUX Rev 9 It is assumed that while the product is in normal use any batteries associated with real time clocks or battery backed RAM will be replaced at the regular intervals The EFUP relates only to the environmental impact of the product in normal use it does not imply that the product will continue to be supported for 50
16. outputs and four inputs Only the signals on the connectors marked as outputs are compliant with the AES 3ID specification 16 AV MUX Rev 9 AES 0 AES 2 ga ee Outputs DE EEEE AES 3 3 ARS 4 gt AES 1 ge J AES 2 aa da i d Inputs Pt ELE E IE AES 3 219 AES 4 c4 Figure 7 Audio connector configuration for AV MUX 17 AV MUX Rev 9 6 Module status The status of the module can be monitored in three ways 1 GYDA SC System Controller optional 2 GPI at the rear of the sub rack 3 LED s at the front of the sub rack Of these three the GPI and the LED s are mounted on the module itself whereas the GYDA SC System Controller is a separate module giving detailed information on the card status The functions of the GPI and the LED s are described in sections 6 1 and 6 2 The GYDA controller is described in a separate user manual 6 1 GPI Module status outputs These outputs can be used for wiring up alarms for third party control systems The GPI outputs are open collector outputs sinking to ground when an alarm is triggered The GPI connector is shown in figure below AV MUX module GPI pinning Signal Name Pin Mode Valid Video Valid video is output 1 Open Collector 1 H AES1 Error AES 1 receiver error 2 Open Collector i AES2 Error AES 2 receiver error 3 Open Collector
17. quipment 1 The equipment will meet the guaranteed performance specification under the following environmental conditions Operating room temperature range 0 Cto 50 C Operating relative humidity range lt 90 non condensing 2 The equipment will operate without damage under the following environmental conditions Temperature range 10 Cto55 C Relative humidity range lt 95 non condensing 3 Electromagnetic compatibility conditions Emissions EN 55103 1 Directive 89 336 EEC Immunity EN 55103 2 Directive 89 336 EEC 21 AV MUX Rev 9 Certificate of Conformity Network Electronics ASA Company Registration Number N 3204 Sandefjord NO 976 584 201 MVA Norway Declares under sole responsibility that the product Product Name AV MUX Product Description Digital Audio De Embedder To which this declaration relates are of Norwegian origin and are in conformity with the following standards EN 55103 1 1996 Generic Emissions Standard EN 55103 2 1996 Generic Immunity Standard 22 AV MUX Rev 9 Product Warranty The warranty terms and conditions for the product s covered by this manual follow the General Sales Conditions by Network Electronics ASA These conditions are available on the company web site of Network Electronics ASA www network electronics com 23 AV MUX Rev 9 Materials declaration and recycling information Materia
18. r and a de embedder The card has two audio embedding processors which can each process a group of four audio channels This means the card can embed eight channels de embed eight channels or de embed four channels and embed four channels Inputs Outputs E4 dg Es ABS 2 ec pan M51 SRC S1 Laser Embedding Embedding EH b processor as vc processo Serialiser L eu SO transmitter Figure 1 AV MUX block diagram AV MUX 1 1 Signal flow Rev 9 The digital video passes through the receiver and the EDH information is processed in the de serialiser It then is passed to the two embedding processors one after the other The video signal is then re serialised and sent to the electrical and optical outputs The AES digital audio inputs 1 and 2 go to the first processor and inputs 3 and 4 go to the second processor Similarly the audio outputs from the first processor go to AES outputs 1 and 2 while the audio outputs from the second processor go to AES outputs 3 and 4 Sample rate converters are automatically switched into the signal flow if the AES input audio is not locked to the video signal The sample rate converters are always switched on or off for both of the audio inputs going to an embedding processor i e AES input pair 1 and 2 or 3 and 4 are switched
19. ssign the same group number to both embedder processors This would be useful if the card is used as an add drop node or for confidence monitoring The group number is then set by the combination of the two group switches as shown in the following table Group Switch A G3 Switch B G4 1 Off Off 2 On Off 3 Off On 4 On On Group assignment when both embedding processors use the same group 4 1 7 Prog M This switch is only used when programming the master microcontroller and must be switched off 4 1 8 Prog S This switch is only used when programming the slave microcontroller and must be switched off i aed rid BB Configuration From DIPs De embed A A embe A Group 1 61 63 De embed B embed B Group 2 B 62 04 A and B different groups amp B Gn Off rog S Li Off rog M Figure 2 AV MUX DIP switches configured to de embed groups 1 and 2 AV MUX Rev 9 4 2 Embedded audio removal De embedding does not change the active video but the audio signals are normally removed The EDH packet flags are always updated and SDI format errors are corrected The Full Field CRC words are not updated when de embedding and are therefore incorrect after the audio group is removed A flag is set in the EDH packet to indicate this to downstream equipment to avoid the false indication of transmission errors This default behaviour has been adopted because many 8 bit D A converters w
20. udio signal The AV DMUX card will correctly decode the Channel Status bits The Full Field CRC words are not updated when de embedding The EDH packet in the SDI output is still valid after the audio group is removed but a flag is set to indicate an invalid Full Field CRC If the audio is allowed to remain in the SDI signal the EDH output packet will be correct AV MUX Rev 9 4 Configuration Digital video may have up to four groups of four audio channels An audio group has four audio channels Each audio group contains two AES stereo audio signals Each embedding processor works with a single audio group so the AV MUX card can work with two audio groups which are eight mono audio channels The first embedding processor normally processes either group one or group three The second processor normally processes either group two or group four Embedded audio in video from digital VTRs is usually embedded in group 1 Embedding with group 1 with the AV MUX is only used if the original audio is absent or to be replaced NOTE The AV MUX removes all existing audio when embedding on group 1 Embedding on other audio groups appends the new group to existing embedded audio 4 1 DIP switches The configuration of the card sets a number of parameters The operational mode for each of the embedding processors embedding or de embedding The audio group numbers being processed for each embedding processor Whether the audio is removed
Download Pdf Manuals
Related Search
AV MUX av mux avmuxer av music av mucio jose reis av music script generator av music script tips av music script editor av music script library av music script download av music script examples av music script language av music script software av music script tutorial